The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2013
Filed:
May. 17, 2012
Takashi Motoda, Tokyo, JP;
Takashi Motoda, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A method of manufacturing a laser diode device includes: forming, in a semiconductor laser bar, separation trenches extending across all of a transverse dimension of the semiconductor laser bar and defining a mesa stripe, each of the separation trenches having wide portions located at longitudinal edge portions of the semiconductor laser bar and a narrow portion located in a longitudinal central portion of the semiconductor laser bar; scribing, in the semiconductor laser bar, grooves extending parallel to the separation trenches and terminating before reaching longitudinal edge portions of the semiconductor laser bar; and splitting the semiconductor laser bar along the grooves to form cleaved surfaces extending from a bottom surface of the semiconductor laser bar to bottom surfaces of the separation trenches.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile